Finding the Fourth Proportional to 1,519,253,723.60, 2,278,561,716.85 and 428,481,699.92
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Solution
The fourth proportional to 1,519,253,723.60, 2,278,561,716.85 and 428,481,699.92 is: 642,632,618.00
Step by Step Solution
- Step 1: Write the proportion equation
1,519,253,723.60 : 2,278,561,716.85 = 428,481,699.92 : x - Step 2: Convert to fraction form
1,519,253,723.60/2,278,561,716.85 = 428,481,699.92/x - Step 3: Cross multiply
1,519,253,723.60x = 2,278,561,716.85 × 428,481,699.92 - Step 4: Simplify right side
1,519,253,723.60x = 976,321,997,808,521,728 - Step 5: Solve for x
x = 976,321,997,808,521,728/1,519,253,723.60 - Step 6: Final answer
x = 642,632,618.00
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.